Lighting unit

Details Lighting unit Lighting unit

1980-07-10

1982-10-19

Lechert, Jr., Stephen J.

Illumination

With static structure

Pavement

362231, 362293, 362359, 362390, F21S 102

Patent

active

043553494

ABSTRACT:
A lighting unit for a glide path lighting system comprises a light source, a lens, and a colored interference filter part way across the light path between the light source and the lens, arranged so as to produce a light beam having a white part, a colored part and a transition region. The filter is inclined at an angle of approximately 6.degree. to a plane normal to the optical axis of the unit.

REFERENCES:
patent: 3007034 (1961-10-01), Reed et al.

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